I think I would lean towards rules. If the enjoy something it may prove fruitful if that is there talent or passion - but it has to be done with respect and making sure things like grades and chores are done. I honestly can't say - as I am not a parent but I am a big advocate for video games and tech when it is applied properly. If one your sons like video games he may want to make them, but it also could just be a waste of time. You have to know your own children - and I am not qualified to give parenting advice.
However I think if you start to have to "tolerate" behavior, you will resent them, and eventually lash out so I would urge you to find a way to deal with it sooner than latter.
This might help, I can't speak from personal experience but I was listening to this guy and it might prove helpful:
What kind of games are your children interested in? If they truly are passionate about video games it could be a good thing to learn about.
Great videos made me laugh but yes for sure you have to teach them self control and how to deal with their emotion as well as for myself. Don't get me wrong, I am not for them to have no technology at all...but I am stronger in my point that technology should be limited. When I am seeing them behaving differently if they have to much of it, it is my job as a parent to set limits. They feel like they are treated unfairly by me setting limits, but I do believe I am making the right choice.
Maybe your right, they might be able to create one, and learn how to do so. :)
Thanks for your input!
They may feel bad now, but like brushing their teeth - they'll appreciate it in the long run, if it is done with the right intentions. Good luck!